Aggry beads (also spelled aggri beads or aggrey beads) are a type of decorated glass bead from Ghana, used by West Africans as ornaments in necklaces, bracelets and other jewelry. Aggry beads are also called Koli, Cori, Kor, Segi, Accori, or Ekeur. They are often used for medicinal purposes, as it is believed that they have magical powers. Beads were used for exchange and as a means of payment during trade in Africa. Europeans first collected aggry beads from the West Coast of Africa in the fifteenth century. Sometimes millefiori beads are called "Aggrey", but this may be incorrect.